Junction-box for electrical conductors.



J. F. BURNS JUNCTION BOX FOR ELECTRICAL GONDUGTORS. APPLICATION FILED SEPTJG, 1908.

927,21 8, Y Patented July 6, 1909.

2 SHEETS-SHEET 1.

wwmzsssjas= J. F. BURNS. JUNCTION BOX FOR ELEUTRIUAL GONDUGTORS.

APPLIOATION FILED SEPT. 30, 1908.

927,23 1 8. Patented July 6, 1909,

2 SHEETS-SHEET 2.

FIG [12' 30, 4 WITNESSES: INVENTOR:

U STAT-ES PATENT OFFIGEQ JAMES F. BURNS, on PHIL D LPHIA, PENNSYLVANIA.-

JUNcTr'oN-Boxron ELECTRICAL ooNnUoron s:

Biol-927,218. Specification of LettersPatent. "Patented $111 16, 1909. 'Application fi1ed -Septembe'r30,.1908. "se is jno; ita iis,

T o all'whom it may concern: 7, extending obliquely. gt

Be it known that I, JAMES F. BURNS, oi duit 4, in an approximately lort Philadelphia, in the State of Pennsylvania, angular relation therewnthand v have invented a certain new and useful Imoutlets 8. Said outle ettest 6O 5 ovem'ent in Junction-Boxes for Electrical vided with insulating bushing] I onductors,wl1ereof the following is a speciiently'made of eramm Qaiid Ql" fication, reference being had to the accom-v recesses 11,- in rect angiila panying drawings. cated bydotted linesjni My unprovement is particularly ap lica- .to engage the spring wire l0 ble t'o'terminal fittings for exposed con nits, able relation. Said b e-.',1., s. .151= and, as here nafter descrlbed, my invention the removable coveiyjl having 1 15, to comprises a box having a screw threaded receive the screws 16, wh1ch;are, fittedf'in the socket for a conduit a wall extending obscrew-threaded apertures 17, iiith e lugs 18,

liquely to theaxis of said conduit and having upon said base '1, wh r said'covri's de- '15 an'outlet; a removablecover opposed to said tachably secured uponlsaidbase,

socket, extending transversely with respect The form of my inventionabove ,described to the axis thereof; and means detachably may be conveniently employed 'for junction securing said cover. In a modified form of boxes of small size where-it is notinconvem =iny invention, said socket is in a member ient to rotate the entire" ase'to .efii'ect its 20- which is relatively rotary with respect to the screw threaded engagement, 'ith thecon'duit. box to which it is detachably connected, so However, for larger sizes of junction boxes, that the conduit may be connected to" the and for conduits so situated that it is inconhox, without rotation oi the latter. A convenient to rotate the entire box base thereon,

. venient' adjunctive feature of my invention I prefer to employ the form of my invention ,2j5 is-the provision of insulating bushings fitted shown in Figs. IV to VII inclusive, whereinto openings in said obliquely extending wall, the conduit 20 is engaged in the screwand having meansdis'tinct from the box arthreaded socket 21, of the coupling member ranged to retainthem, and comprising spring 22, in alinement with the inlet 23, in the boss 'cli s engaging'recesses in the bushings. 24, which is fitted to the opening 25 in. the 30 v y invention comprises the various novel box base 26. Said coupling member 22 features of construction and arrangement comprises oppositely extending lugs 27, havhereinaftermore. definitely specified. ing screw threaded apertures 28, for the In the drawings; Figure I, is a side elevascrews 29, which extend through the lugs 30, tion of abox conveniently embodying my in on said box base 26, and thus detachably 35'vention as applied to a .ve'rtical conduit. connectsaid socket member in rigid relation Fig. II, is a central vertical sectional view of with said box. Asshown in Figs. IV and V, said box taken on the line II, II in Fig. III. a gasket 32 may be interposed between said III, is'aninverted plan view of the box box and socket member to hermetically seal shown in Figs'I and II. Fig. IV, is a side the joint between them. 40 elevation of a box embodying a modified The box shown in Figs. IV to VI inclusive, form of my invention. Fi V, is a vertical comprises the outlet wall 34, having the outsectional View of the box shown in Fig. IV, lets 35, which are provided with bushings 9, taken on the line V, V iii/Fig. VI. Fig. VI, as above described, and said. box is provided 1 is a plan view of the box shown in Figs. IV with a cover 37, like the cover 14, above de- 45 and V, with. the cover and bushings removed. scribed, having lugs 38, for the screws 39,

Fig. VII, is a plan view of the coupling membershown in Figs. IV, V and VI. Fig. VIII, is an inner end- View oi one of the bushings shown in Fig. V, with its retaining spring .50.wire clip. I that, when their covers are removed, elec-' Referring'to the form of my invention trical conductors may be drawn straight which extend in screw-threaded engagement shown in, Figs. I, II and III, the box eoml through the conduits and then be convenwith apertures 41, in the lugs 42, on said box base 26.

The boxes above described are so arranged prises th base 1, having the socket member 2, containing the screw threaded socket 3, 55 for the-conduit 4, in axial alinement with the inlet 5. Said base comprises the outlet wall iently returned through the outlet bushings. It may be observed that when sa d covers are closed, as shown 1n Figs. I and IV, they serve to shed rain from the boxes, the inclined position of the box Walls having the outlets preventing access of rain through said outlets.

I do not desire to limit myself to the precise details of construction and arrangement above described, as it is obvious that various modifications Ina" be made therein, without departing from t 1e essential features of my invention, as defined in the appended claims.

I claim 1. In a junction box having a socketfor a conduit; a Wall in said box "extending .obliquely to the axis of said. conduit,in a plane intersecting said conduit, and having an outlet; an insulating bushing, having a recess, detachably fitted in said outlet; means distinct from the box arranged to retain said bushing, comprising a spring clip arranged to engage the recess in said bushing; a removable cover for said box, opposed to said socket member and extending transversely to said axis; and means detachably vsecuring said cover. v

2. In a junction box having a socket member in unitary relation therewith, provided with threads for connection With a conduit; a Wall in said box extending obliquely to the axis of said conduit; and having an outlet;

an insulating bushing detachably fitted in said outlet; means distinct from said box arranged. to'retain said bushing; a removable cover for said box opposed to the socket and extending transversely to said axis; and, means detachably securing said cover.

3. In a junction box having oppositely extending lateral lugs, and a socket member in unitary relation therewith, said socket rnem berbeing'provided With threads for connection with a conduit; a Wall ext-ending obliquely to the axis of said conduit and having.

an outlet; a cover opposed to the socket and extending transversely with respect to the thereof; lu gsv said cover, arranged to register with the lugs on said box; and, means connecting said lugs arranged to detachably retain said cover on said box.

In testimony whereof, I have hereunto.

signed my name at Philadelphia, Pcnnsyh Vania, this i1 "lli'ffflUntll day of September.

JAMES F. BURNS. I'Vitnesses JoHN H. BAKER, CLARENCE V1 SI-IICK.

extendii'i g laterally from 

